Sprinkler base



FIG. 1 is a first top perspective view of a sprinkler base of the present invention;

FIG. 2 is a second top perspective view thereof; and,

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a first side view thereof;

FIG. 6 is a second side view thereof;

FIG. 7 is a first end view thereof; and,

FIG. 8 is a second end view thereof.

The ornamental design which is claimed is shown in solid lines in the drawings. Any broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for a sprinkler base, as shown and described. 